He is the grandson of renowned poet, translator and publicist Sokrat Khanyan.

Melikyan's two recent solo albums were released by NAXOS Grand Piano label: complete piano solo compositions of Arno Babadjanian and Alexander Arutiunian.

[1] In 2013, he performed in Germany with Karine Gilanyan in dedication of the then upcoming 100th anniversary of the Armenian genocide.

[2] Melikyan regularly performs on prestigious stages of the world including Gulbenkian Grand Auditorium (Lisbon),[3] Victoria Hall (Geneva),[4] Aram Khachaturian Grand Concert Hall (Yerevan),[5] etc.

[6] Hayk Melikyan has power and agility to spare, with plenty of attention to inner voicings.